| Re: include files in IDL programs [message #22513 is a reply to message #22503] |
Fri, 17 November 2000 00:00   |
Nando Iavarone
Messages: 48
Registered: December 1998
|
Member |
|
|
Randall Skelton wrote:
> Hello all,
>
> This is a longshot but is there any way to have an 'include file' in IDL.
> i.e. I have a data structure which is rather complicated (and big in type)
> and I don't want to see it in every program/subroutine that I write. Is
> there anyway just to have it included with a simple '#include blah.pro' or
> somthing similar?
>
> Thanks in advance,
>
> Randall
If you have a file containing code (as batch), you can use the '@filename'
to include that codes in your program.
If the case of strucured data type, it coul be better to use the __define
procedure.
For example suppose you have the structure:
struct = {structTest, $
pippo: 0L,$
pluto: lonarr(5)}
In the first case if you have the file "struct.definition",
in your code you can insert that lines using: @struct.definition
It works as "#define " of C. IDL simply replace the @struct.definition with
the contents of the file.
In the second case you can have the file "structTest__define.pro", containing
the declaration of your struct:
pro structTest__define
struct = {structTest, $
pippo: 0L,$
pluto: lonarr(5)}
end;
After structTest__define.pro compilation, in your code you can use the
statement
myStruct = {structTest}.
The difference between the two techniques is that in the first case struct is
your variable; in the second one you define a "new data type" structTest that
you can use to "declare" all variables you need:
myStruct1 = {structTest}
myStruct2 = {structTest}
myStruct1 and myStruct2 are two different variables of the same type.
bye.
|
|
|
|
comp.lang.idl-pvwave archive
Members
Search
Help
Login
Home
